Abell 85

[Kinch]

 
CTB is a supernova remnant (leftovers from an exploding star), similar to the famous Veil Nebula in Cygnus but much fainter. Its size in the sky is similar to the size of a full moon and it is approximately circular. Note, however, that its outer shell has ruptured between the 7 and 8 o'clock position. Originally this was thought to be a planetary nebula (which is why it appears as Abell 85 in his catalogue of planetaries) but in 1971 it was determined that it is actually a supernova remnant.

Imaging telescope: Takahashi FSQ130ED
Imaging camera: ASI 2600MM
Mount: JTW Trident P75
Guiding telescope: Takahashi FS60CB
Guiding camera:  QHY 5 II
Focal Extender / Reducer:  None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor, PixInsight.
Filters:  Astrodon Ha (3nm), OIII (3nm) and  Astrodon R,G,B.

Accessories: Robofocus Focuser controlled by Lunatico Armadillo,  ATIK EFW 3, RB Focus Gaius, RB Focus Excalibur. 

Dates:   14th - 17th Aug. 2024   

Frames: (Total)

Astrodon  Ha        60 x 600" 
Astrodon  OIII       60 x 600" 
Astrodon RGB      3 x 60 x 60"

Total integration  = 23 Hours